Inferior sagittal sinus

Inferior sagittal sinus
Dural veins (Inferior sagittal sinus labeled as "SIN. SAGITTALIS INF." at upper right.)
Dura mater and its processes exposed by removing part of the right half of the skull, and the brain. (Inferior sagittal sinus visible as blue line at center.)
Details
Drains to	straight sinus
Identifiers
Latin	sinus sagittalis inferior
MeSH	A07.231.908.224
Dorlands /Elsevier	s_12/12739202
TA	A12.3.05.111
FMA	50768
*Anatomical terminology* [edit on Wikidata]

The inferior sagittal sinus (also known as inferior longitudinal sinus), within the human head, is an area beneath the brain which allows blood to drain outwards posteriorly from the center of the head. It drains (from the center of the brain) to the straight sinus (at the back of the head), which connects to the transverse sinuses. See diagram (at right): labeled in the brain as "SIN. SAGITTALIS INF." (for Latin: sinus sagittalis inferior).

The inferior sagittal sinus courses along the inferior border of the falx cerebri, superior to the corpus callosum.

It receives blood from the deep and medial aspects of the cerebral hemispheres and drains into the straight sinus.

Additional images

Sagittal section of the skull, showing the sinuses of the dura.
Human brain dura mater (reflections)

References

This article incorporates text in the public domain from the 20th edition of Gray's Anatomy (1918)

Veins of the head and neck

External jugular

Retromandibular	maxillary pterygoid plexus superficial temporal anterior auricular

Direct	posterior auricular transverse cervical suprascapular anterior jugular jugular venous arch

Internal jugular

Diploic/brain

Cerebral

Superficial:	superior superficial middle inferior inferior anastomotic (Labbé) superior anastomotic (Trolard)

Deep:	great internal basal deep middle superior thalamostriate

Cerebellar

Sinuses

To COS	superior sagittal straight inferior sagittal occipital

To CS	sphenoparietal intercavernous superior ophthalmic ethmoidal central retinal nasofrontal vorticose veins inferior ophthalmic

To IJV	sigmoid: transverse petrosquamous superior petrosal inferior petrosal basilar plexus internal auditory veins condylar

Facial/common facial

Direct

Brachiocephalic

Vertebral	occipital occipital emissary suboccipital venous plexus deep cervical

Direct	inferior thyroid inferior laryngeal thymic

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Inferior sagittal sinus

Additional images

See also

References